AP Human Geography is organized into 7 CED units, and CollegeBoard weights them differently on the exam. Unit 1 carries a smaller share (8-10%) than Units 2-7 (12-17% each), so it's worth checking the weightings before you plan revision.
This guide covers all 7 units, their weight, what's inside each, and where to spend your time first. If you want structured content coverage of the same units, Cognito's AP Human Geography course walks through the CED with lessons and practice questions.
The 7 units at a glance
| Unit | Topic | Exam weighting |
|---|---|---|
| 1 | Thinking Geographically | 8-10% |
| 2 | Population and Migration Patterns and Processes | 12-17% |
| 3 | Cultural Patterns and Processes | 12-17% |
| 4 | Political Patterns and Processes | 12-17% |
| 5 | Agriculture and Rural Land-Use Patterns and Processes | 12-17% |
| 6 | Cities and Urban Land-Use Patterns and Processes | 12-17% |
| 7 | Industrial and Economic Development Patterns and Processes | 12-17% |
Units 2 through 7 all sit in the same 12-17% band, which means no single content unit dominates. Unit 1 (skills) is smaller by weight but its concepts appear throughout the other units, so it earns more attention than the raw percentage suggests.
Unit 1: Thinking Geographically (8-10%)
Unit 1 covers the skills and concepts that run through the rest of the course: Map types and projections, spatial concepts (site, situation, distance decay, scale of analysis), data sources (census, GIS, remote sensing), and geographic models.
What to prioritize: Distinguishing between site (physical characteristics of a place) and situation (relative location), being able to identify which scale of analysis a question is asking about (local, regional, national, global), and knowing the trade-offs of common map projections.
Unit 2: Population and Migration (12-17%)
Unit 2 covers population distribution and density, demographic tools (population pyramids, dependency ratio), the demographic transition model, migration patterns (push and pull factors, forced vs voluntary, intraregional vs international), and the Malthusian and anti-Malthusian arguments.
What to prioritize: Reading and interpreting population pyramids (recognizing expansive vs constrictive vs stationary shapes), the four/five stages of the demographic transition with country examples of each, and Ravenstein's laws of migration.
Unit 3: Cultural Patterns and Processes (12-17%)
Unit 3 covers cultural landscapes, language families and diffusion, religion (universalizing vs ethnic), diffusion types (relocation, expansion, hierarchical, contagious, stimulus), globalization of culture, and gender roles in space.
What to prioritize: Relocation and expansion diffusion (including contagious, hierarchical and stimulus expansion) with examples of each, the major language families and their hearths, and the distinction between universalizing religions (Christianity, Islam, Buddhism) and ethnic religions (Judaism, Hinduism).
Unit 4: Political Patterns and Processes (12-17%)
Unit 4 covers types of political entities (nation, state, nation-state, stateless nation), boundaries (types and disputes), electoral geography (gerrymandering, redistricting), supranational organizations, and centripetal vs centrifugal forces in states.
What to prioritize: The distinction between a nation, a state and a nation-state (with examples of each), types of boundary disputes (definitional, locational, operational, allocational), and forms of gerrymandering (packing, cracking) with the effect on representation.
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Unit 5: Agriculture and Rural Land Use (12-17%)
Unit 5 covers agricultural origins and diffusion (the three agricultural revolutions), farming systems (intensive vs extensive, subsistence vs commercial), rural settlement patterns (clustered, dispersed, linear), von Thunen's model, and contemporary agricultural issues (GMOs, fair trade, food deserts).
What to prioritize: Von Thunen's model with the four rings and the factors that distort it in practice, the three agricultural revolutions with the changes each one produced, and the difference between shifting cultivation, pastoral nomadism and plantation agriculture.
Unit 6: Cities and Urban Land Use (12-17%)
Unit 6 covers urbanization patterns, urban models (Burgess concentric zone, Hoyt sector, Harris-Ullman multiple nuclei, Latin American, Southeast Asian, sub-Saharan African), central place theory, urban issues (sprawl, gentrification, informal settlements), and sustainable urban design.
What to prioritize: The classic North American urban models and how they differ from the world-region models, central place theory (threshold, range, hexagonal market areas), and Latin American vs Southeast Asian city models with their distinguishing features.
Unit 7: Industrial and Economic Development (12-17%)
Unit 7 covers the Industrial Revolution and its diffusion, Weber's least cost theory of industrial location, measures of development (GDP, HDI, GII), stages of economic development (Rostow's stages, Wallerstein's world-systems theory), and contemporary economic issues (outsourcing, deindustrialization, sustainability).
What to prioritize: Weber's least cost theory with the three factors (transportation, labor, agglomeration), the difference between Rostow's stages and Wallerstein's core-periphery model, and the components of the HDI (Human Development Index).
Where to focus your revision
Because Units 2-7 all sit in the same 12-17% band, revision balance across them is more important than picking a single 'biggest' unit. A defensible 11-week plan is roughly 1.5 weeks each on Units 2 through 7 (9 weeks total) plus half a week on Unit 1, then 1-2 weeks of full timed FRQs and MCQ mocks.
AP Human Geo rewards precise vocabulary use on FRQs. Terms like sequent occupance, distance decay, gravity model, and site vs situation have specific technical meanings, and the FRQ rubric rewards exact application of those terms. Each FRQ part is worth one point, so a vague description often earns nothing for that part. Build a vocabulary sheet unit by unit and drill it weekly.
The FRQ rubric rewards precise use of geography vocabulary. If your FRQ answer says 'people moved because it was hard to live there,' that's likely zero points; naming 'push factors including environmental degradation and lack of economic opportunity' is much more likely to earn the point.
Study AP Human Geography with Cognito
Unit-by-unit lessons on all 7 CED units, plus FRQ walkthroughs that show exactly how the rubric interprets vocabulary use.
